作为一门交叉学科，企业竞争力主要有三个研究视角：企业理论、产业经济学理论和管理学理论。
As a new subject, competitiveness of enterprises has three angles in research, which are theories of enterprises, of industrial economics and of management science.
基于经济学理论和方法对煤炭市场总供给和总需求进行了分析，奠定了煤炭产业经济学的基本概念框架。
Total supply of, and total demand for coal in the market is analyzed based on economics theory and methodology. A basic conceptual framework of coal industry economics has been established.
基于经济学理论和方法对煤炭市场总供给和总需求进行了分析，奠定了煤炭产业经济学的基本概念框架。
Total supply of, and total demand for coal in the market is analyzed based on economics theory and methodology. A basic conceptual framework of coal industry economics has been established.
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